Mathematics

Problem

A particle moves along the

x

–axis with velocity

\mathbf v(t)=\langle 3t^{2},0\rangle

meters per second for

0\le t\le 2

. What is the particle’s average speed over this interval? a)

12\text{ m/s}

4\text{ m/s}

8\text{ m/s}

6\text{ m/s}